To close your company, it will require you to file an Articles of Dissolution with the Secretary of State.
If you have an account with us for this company then you will need to login to your account and order the "Dissolution" with us. This is what you would do:
1) Login at www.incfile.com/dashboard
2) Go to "State & IRS Filings" section
3) Order the Dissolution
If you do Not have an account with us or the formation of the company was Not done through our services then to change the filed information with the state you can review this link for additional information regarding the filing of a dissolution.